Multi-material transducer enclosure

Techniques are disclosed for configuring a bi-material enclosure for an acoustic sensor assembly, such as for use in a water or gas metering applications, or other applications using piezo and/or transducer devices. A plastic housing with mechanical reinforcements (e.g., 40% glass fiber) provides the advantage of strength and resistance to a high-pressure environment encountered during use. Use of a plastic sleeve having less or no reinforcements provides more consistent signal reception and data generation between different transducer assemblies under the same or similar conditions. Accordingly, the bi-material transducer enclosure provides a high resistance to pressure and/or high reproducibility of signal-transmission characteristics between transducer assemblies.